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Block 171 Ang Mo Kio Avenue 4

4 Room · 5 Room · Built 1982 · 54 years remaining lease MOP Cleared
Latest Sale
$635,000
Mar 2026 · 4 ROOM · Floor 10-12
Median $/sqm
$5,252
Based on 18 transactions
Total Transactions
18
Since Jan 2017
5-Year Trend
▲ +21.3%
Median price change
Median Price ?
Top 17%
#61 / 363 Top 17%
Latest Sale ?
Top 27%
#99 / 363 Top 27%
Value ($/sqm) ?
Top 28%
#103 / 363 Top 28%
5-Year Growth ?
Top 87%
#239 / 274 Top 87%
Price Trend
Source: HDB Resale Flat Prices, data.gov.sg. Updated monthly.
What's Your Unit Worth?
HDB records transactions in 3-storey bands (e.g. 01 TO 03). Pick the band closest to your floor.
Estimated Market Value
--
Future Value Projection
Market Appreciation
+3.9%/yr
vs
Lease Decay
−0.63%/yr
Growth assumption
Based on this block’s +21.3% growth over 5 years
Estimated value in --
--
Market appreciation --
Lease decay --
Net effect --
Projection uses Bala's Table (SLA leasehold model) for lease decay and your selected growth rate for appreciation. Lease decay is non-linear and accelerates as remaining lease shortens. Past growth does not guarantee future performance. Not financial advice.
Lease Decay Projection
0 years 54 years remaining 99 years
54 years 10 months
Remaining lease
↓ 0.63%/yr
Annual lease decay (Bala's Table)
Based on Bala's Table (SLA leasehold relativity model). At 54 years remaining, decay is gradual (~0.63%/yr). It accelerates significantly below 40 years. Market appreciation (historically 2-4%/yr) currently outpaces lease decay for this block.
All Transactions
Date Floor Type Area Price $/sqm
Mar 2026 10 TO 12 4 ROOM 98 sqm $635,000 $6,480
Dec 2025 07 TO 09 5 ROOM 127 sqm $790,000 $6,220
Aug 2025 04 TO 06 5 ROOM 127 sqm $738,000 $5,811
Jul 2025 01 TO 03 5 ROOM 127 sqm $745,000 $5,866
Jul 2024 01 TO 03 5 ROOM 127 sqm $708,000 $5,575
Aug 2022 01 TO 03 5 ROOM 131 sqm $697,988 $5,328
Jun 2022 07 TO 09 5 ROOM 127 sqm $710,000 $5,591
Feb 2022 13 TO 15 4 ROOM 98 sqm $514,000 $5,245
Jul 2021 01 TO 03 5 ROOM 127 sqm $620,000 $4,882
Jul 2021 10 TO 12 5 ROOM 127 sqm $678,888 $5,346
Jun 2021 04 TO 06 4 ROOM 98 sqm $461,000 $4,704
Oct 2020 10 TO 12 4 ROOM 98 sqm $438,000 $4,469
Feb 2020 04 TO 06 5 ROOM 127 sqm $590,000 $4,646
Dec 2019 01 TO 03 5 ROOM 127 sqm $500,000 $3,937
Jul 2019 10 TO 12 4 ROOM 98 sqm $445,000 $4,541
Feb 2019 10 TO 12 4 ROOM 98 sqm $450,000 $4,592
Jun 2018 07 TO 09 5 ROOM 127 sqm $668,000 $5,260
Jun 2017 07 TO 09 5 ROOM 127 sqm $660,000 $5,197
Showing 18 of 18 transactions
Source: HDB Resale Flat Prices, data.gov.sg (Singapore Open Data Licence).

About Block 171 Ang Mo Kio Avenue 4

Block 171 at Ang Mo Kio Avenue 4 is a residential HDB block in Ang Mo Kio, Singapore, built in 1982 with approximately 54 years remaining on its 99-year lease. The block contains 4 room, 5 room flats, with resale prices ranging from $438,000 to $790,000 based on 18 recorded transactions since January 2017. The most recent transaction was a 4 room flat on storeys 10 TO 12 sold for $635,000 in 2026-03. The current median price per square metre is $5,252. Over the past five years, resale prices at this block have increased by approximately 21.3%. Under Bala's Table (the Singapore Land Authority's official leasehold valuation model), the block's leasehold relativity ratio is 0.8484, with an annual lease decay rate of approximately 0.63%. All transaction data is sourced from Singapore's data.gov.sg open data platform and is updated monthly.

Frequently Asked Questions

How much is an HDB flat at Block 171 Ang Mo Kio Avenue 4 worth?

The most recent resale transaction at Block 171 Ang Mo Kio Avenue 4 was $635,000 for a 4 room flat in 2026-03. The median price per square metre across all flat types is $5,252, based on 18 transactions since January 2017. Data sourced from data.gov.sg.

What is the remaining lease for Block 171 Ang Mo Kio Avenue 4?

Block 171 Ang Mo Kio Avenue 4 was built in 1982 and has approximately 54 years and 10 months remaining on its 99-year lease. Under Bala's Table (the SLA leasehold valuation model), the annual lease decay rate is 0.63%, meaning the leasehold value decreases by approximately 0.63% per year at the current remaining lease.

What flat types are available at Block 171 Ang Mo Kio Avenue 4?

Block 171 Ang Mo Kio Avenue 4 in Ang Mo Kio contains 4 room, 5 room flats. Resale prices range from $438,000 to $790,000 based on historical transaction records from data.gov.sg.

Have HDB prices at Block 171 Ang Mo Kio Avenue 4 gone up or down?

Resale prices at Block 171 Ang Mo Kio Avenue 4 have increased by approximately 21.3% over the past five years. The current median price is $647,500, with the most recent sale at $635,000 in 2026-03.

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